<template>
  <div class="block">
    <el-date-picker
      v-model="value2"
      type="datetimerange"
      :value-format="datePattern"
      :picker-options="pickerOptions"
      range-separator="至"
      start-placeholder="开始日期"
      end-placeholder="结束日期"
      align="right"
      @change="change"
    >
    </el-date-picker>
  </div>
</template>

<script>
  export default {
    name: "time-picker",
    props:{
      datePattern: String,
      initTime:Array
    },
    watch:{
      value2(val, oldVal){//普通的watch监听
      },
    },
    created(){
      this.value2 = this.initTime;
    },
    data() {
      return {
        pickerOptions: {
          shortcuts: [{
            text: '最近一周',
            onClick(picker) {
              const end = new Date();
              const start = new Date();
              start.setTime(start.getTime() - 3600 * 1000 * 24 * 7);
              picker.$emit('pick', [start, end]);
            }
          }, {
            text: '最近一个月',
            onClick(picker) {
              const end = new Date();
              const start = new Date();
              start.setTime(start.getTime() - 3600 * 1000 * 24 * 30);
              picker.$emit('pick', [start, end]);
            }
          }, {
            text: '最近三个月',
            onClick(picker) {
              const end = new Date();
              const start = new Date();
              start.setTime(start.getTime() - 3600 * 1000 * 24 * 90);
              picker.$emit('pick', [start, end]);
            }
          }]
        },
        value2: ''

      };
    },
    methods:{
      change(){
        this.$emit('pick', this.value2);
      },
      resetVal(){
        this.value2 = ''
      }
    },
  };

</script>

<style scoped>

</style>
